Hangi Tanga Külot Olmalı?

After I have showered I have to get ready but I can't decide on a pair of thong panties. What do you think I should wear? The white or pink or the black or the green. The choice is there and if you write to me I'll be happy to do some dirty talk with it. My ass looks great in them but which one is better? You can also cum on me.